Moved chown to the end of the file to be sure all files created in previ...

[paoloantinori]

...ous steps are now assigned to Fuse user

And on top of that, with recent refactoring to Centos image a better strategy to users diversification need to be planned:

• current image creates a fuse user and relabel the filesystem to be owned by him, but the startup script is still running as root. In this way, all new files created by the runtime are owned by root which is possibly not wanted.

[davsclaus]

@jstrachan does this PR look good to you?